I have a BUNCH of questions...if someone knowledgeable could help me out, I'd appreciate it. I'm currently running the latest version of Panther on a 1 Ghz iBook G4. I heard somewhere that doing an archive or a clean install will give you a little bit of a performance boost (not much, but still a boost) whereas just the standard upgrade won't. 1. Can someone explain WHY performance might be a little bit better with a new system folder installed? 2. Also, if I decide to go with the clean install (just for fun, cause I'm a nerd like that) what folder do I need to backup in order to save all of my Mail files? I have files that are saved in Mail in the "On My Mac" category. Where are these saved at? 3. If I do a clean install, will the OS 9 application and system folders be gone when it boots back up? Is there any good reason to back these things up? My understanding is that Tiger (or Panther) can still boot up OS 9 without these folders installed because it's something located within the core of the operating system and not the folders. 4. Do I need to backup the library folder within my home folder if I do a clean install? Won't Tiger just automatically include a new one for me anyway? Is there any good reason to back this up? 5. Would it be possible to somehow "reverse send" the files on my Ipod back over to my new Itunes folder under Tiger...I know that if I just plug it back in under the default, Ipod will see that the Itunes folder under Tiger is empty and delete all of my music. Is there a way i can get it to take all of the music that's on my ipod and then send it back over to the clean installed computer? (so I won't have to waste time backing up 20 GB of music files) Finally, here's my master list of everything that needs backed up if I do a clean install. Let me know if I'm forgetting something important. Home folder (which includes Documents, Movies, Music, Pictures, Sites and maybe the Library) Application Folder (I can then reinstall any programs that aren't included with Tiger, like Macromedia, Office, etc.) Whatever folder that has my saved Mail messages on it. And there is absolutely no need to back up the two other libraries that you access from within the hard drive (and not the home folder), right? Same with the Users folder and users guide and info....they'll just be reinstalled with Tiger? Oh and I can't forget...my secret hidden porn folder that's currently hidden within the OS 9 System folder with a name that makes it blend in with the rest of the system files. haha. If anyone takes the time to actually answer all of that, I'll really, really appreciate it.